PH meter



FIG. 1 is a view in perspective of a PH meter of the dipping type in accordance with the present invention;

FIG. 2 is a front elevational view of the PH meter of FIG. 1;

FIG. 3 is a top plan view of the PH meter of FIG. 1;

FIG. 4 is a side elevational view of the PH meter of FIG. 1, the opposite side being a mirror image;

FIG. 5 is a rear elevational view of the PH meter of FIG. 1; and,

FIG. 6 is a bottom view of the PH meter of FIG. 1. 

The ornamental design for a PH meter, as shown and described. 